LibbladeRF2: migrate bladerfoutput to bladerf1output

2026-06-01 13:47:01 -04:00 · 2018-09-19 08:42:59 +02:00
parent e130c2213f
commit 0e79f4eccf
19 changed files with 194 additions and 193 deletions
@@ -0,0 +1,118 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2015 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// This program is free software; you can redistribute it and/or modify          //
+// it under the terms of the GNU General Public License as published by          //
+// the Free Software Foundation as version 3 of the License, or                  //
+//                                                                               //
+// This program is distributed in the hope that it will be useful,               //
+// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
+// GNU General Public License V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "bladerf1outputthread.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <algorithm>
+
+
+
+Bladerf1OutputThread::Bladerf1OutputThread(struct bladerf* dev, SampleSourceFifo* sampleFifo, QObject* parent) :
+	QThread(parent),
+	m_running(false),
+	m_dev(dev),
+	m_sampleFifo(sampleFifo),
+	m_log2Interp(0)
+{
+    std::fill(m_buf, m_buf + 2*BLADERFOUTPUT_BLOCKSIZE, 0);
+}
+
+Bladerf1OutputThread::~Bladerf1OutputThread()
+{
+	stopWork();
+}
+
+void Bladerf1OutputThread::startWork()
+{
+	m_startWaitMutex.lock();
+	start();
+	while(!m_running)
+		m_startWaiter.wait(&m_startWaitMutex, 100);
+	m_startWaitMutex.unlock();
+}
+
+void Bladerf1OutputThread::stopWork()
+{
+	m_running = false;
+	wait();
+}
+
+void Bladerf1OutputThread::setLog2Interpolation(unsigned int log2_interp)
+{
+	m_log2Interp = log2_interp;
+}
+
+void Bladerf1OutputThread::run()
+{
+	int res;
+
+	m_running = true;
+	m_startWaiter.wakeAll();
+
+	while (m_running)
+	{
+        callback(m_buf, BLADERFOUTPUT_BLOCKSIZE);
+
+        if((res = bladerf_sync_tx(m_dev, m_buf, BLADERFOUTPUT_BLOCKSIZE, NULL, 10000)) < 0)
+		{
+			qCritical("BladerdOutputThread:run: sync error: %s", strerror(errno));
+			break;
+		}
+	}
+
+	m_running = false;
+}
+
+//  Interpolate according to specified log2 (ex: log2=4 => decim=16)
+void Bladerf1OutputThread::callback(qint16* buf, qint32 len)
+{
+    SampleVector::iterator beginRead;
+    m_sampleFifo->readAdvance(beginRead, len/(1<<m_log2Interp));
+    beginRead -= len;
+
+    if (m_log2Interp == 0)
+	{
+		m_interpolators.interpolate1(&beginRead, buf, len*2);
+	}
+	else
+	{
+        switch (m_log2Interp)
+        {
+        case 1:
+            m_interpolators.interpolate2_cen(&beginRead, buf, len*2);
+            break;
+        case 2:
+            m_interpolators.interpolate4_cen(&beginRead, buf, len*2);
+            break;
+        case 3:
+            m_interpolators.interpolate8_cen(&beginRead, buf, len*2);
+            break;
+        case 4:
+            m_interpolators.interpolate16_cen(&beginRead, buf, len*2);
+            break;
+        case 5:
+            m_interpolators.interpolate32_cen(&beginRead, buf, len*2);
+            break;
+        case 6:
+            m_interpolators.interpolate64_cen(&beginRead, buf, len*2);
+            break;
+        default:
+            break;
+        }
+	}
+}